Optocouplers / Photocouplers

Optocouplers are a type of isolator that use a low-power optical signal to transmit one signal from one circuit to another independent circuit. Optocouplers are comprised of an infrared LED light source and an integrated photo detector which usually consists of a photodiode and detector circuit. This optical link or coupling provides electrical isolation between the two circuits which makes the trouble shooting and reliability of circuits more straightforward. These devices are often used to provide electrical isolation between digital signals on the same board, but they are also commonly used in medical and industrial instruments, motor control systems, and signal conditioning circuits. Optocouplers have very high input-to-output isolation voltage and low capacitance, which makes them suitable for signal transmission in high speed applications. Additionally, they manage the call back current of the circuit they are connecting, allowing them to protect against overloads.
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LTV-824S


Transistor Output Optocouplers Optocoupler AC in 2-CHNL
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Lite-On 2240
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AUD 0.3943
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VO615A-2X009T


Transistor Output Optocouplers Optocplr 63-125% CTR 10mA SMD-4
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Vishay 2234
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AUD 0.1729
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SFH620A-1


Transistor Output Optocouplers Phototransistor Out Single CTR 40-125%
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Vishay 2234
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AUD 0.4662
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Hot FOD8173


Logic Output Optocouplers SSO6 3.3V 10MB
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ON Semiconductor 2234
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AUD 1.0476
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CNY17F-4


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 2233
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AUD 0.3038
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EL817S1(TU)


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:35V
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Everlight 2231
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AUD 0.1711
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LTV-814HS


Transistor Output Optocouplers Optocoupler AC input
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Lite-On 2230
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AUD 0.2597
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FOD3120SD


Logic Output Opto-couplers Optocoupl Logic-Out Push-Pul DC-In 1-Ch
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ON Semiconductor 2220
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AUD 0.8436
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CNY64A


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 2217
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AUD 1.6221
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PS2801-1-F3


Transistor Output Optocouplers OPTOCOUPLER 4-PIN SSOP
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Renesas 2187
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AUD 0.2886
Multiples of: 5

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